Spring-coupling



H. B. ETTERL Spring-Coupling.

No. 226,446. Patented April I3, 1880.

H90 Zn 6,5158 6,- 64% PETERS, PHOTO LITHOGRAFN WASMNGYON u c UNITED STATES PATENT OFFICE.

HENRY B. ETTER, OF HORATIO, OHIO.

SPRING-COUPLING.

SPECIFICATION formingpart of Letters Patent No. 226,446, dated April 13, 1880,

Application filed January 21, 1880.

To all whom it may concern:

Be it known that I, HENRY B. ETTER, of Horatio, in the county of Darke and State of Ohio, have invented certain new and useful Improvements in Spring-Couplings; and I do hereby declare the following to be afull, clear, and exact description of the same.

My invention relates to an improvement in spring-couplings designed especially for con; necting single-trees to the double-tree ot' a,

vehicle, or for general use wherever a springconpling is required.

The novelty consists in the construction of the device and in the arrangement of its parts, combining strength with simplicity and effi ciency, as will be herewith set forth and specitically claimed.

In the accompanying drawings, Figure 1 represents a side elevation of my improved coupling. Figs. 2 and 3 represent the drawbars detached. Fig. 4 is a plan view, showing the application of my improved coupling to a vehicle.

The device consists of two metal. draw-bars, A and B. Figs. 2 and 3, of which the former, A, has a longitudinal slot through it, so as to form two arms or prongs, a. The upper or jointed end is formed into a hook, as represented. The other draw-bar, B, is a straight piece of metal, square in section, having one end formed into a'hook, c, and having upon the other end a right-angular cross-piece, D, with its ends turned up, as shown. The bar B lies between the prongs a in the slot formed in the piece A, as seen in Fig. 1. Coiled around both of these bars is a spiral steel spring, 'E, one end of which rests upon the cross-piece D, and is embraced by the turned-up ends 0.

It will be found by this construction that this device is self supporting, strong, and compact, the turned-up ends 0 of the plate D preventing the spring from spreading or slip ping off.

hen the coupling is attached to a singletree and a double-tree, as. shown in Fig. 4, it forms a yielding connection, and serves to break and deaden the jars which would otherwise be felt if a rigid connection were used.

I am aware that spring'couplings have been before used containing springs and draw-bars; but

\Vhat I claim as new is The l1erein-deseribed spring-couplings, consistin g of the integral forked draw-bar A, with its end piece, F, containing a central square slot, the draw-bar B, with its cross-piece D, 65 having turned-u p ends 0 to embrace the spring, and the circulncoiled spring E, the parts being constructed and relatively arranged in the manner and for the purpose specified.

Witness my hand this 11th day of August, 70. A. D. 1879.

HENRY B. ETTER.

Witnesses:

AARON K. MILLER, OHARLEY LEGKLIDER. 

